Continuing my recent bonfire night baking theme, this is an adapted version of a BBC Good Food recipe for spiced toffee apple cake. The cake is made from a base of date purée, then before baking is topped with rows of sliced red apples. Once it comes out of the oven, you sprinkle it with icing sugar and then drizzle a toffee sauce over the top. Serve cut into squares like brownies!